JPH09186856A - 透視投影解像度変換回路 - Google Patents

透視投影解像度変換回路

Info

Publication number
JPH09186856A
JPH09186856A JP8295109A JP29510996A JPH09186856A JP H09186856 A JPH09186856 A JP H09186856A JP 8295109 A JP8295109 A JP 8295109A JP 29510996 A JP29510996 A JP 29510996A JP H09186856 A JPH09186856 A JP H09186856A
Authority
JP
Japan
Prior art keywords
resolution
pixel
pixels
image
image data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8295109A
Other languages
English (en)
Japanese (ja)
Inventor
Thomas I Yeh
アイ．イェー トーマス
Francis K Tse
ケー．トゥセ フランシス
George W Lahue
ダブリュー．ラヒュエ ジョージ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of JPH09186856A publication Critical patent/JPH09186856A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40075—Descreening, i.e. converting a halftone signal into a corresponding continuous-tone signal; Rescreening, i.e. combined descreening and halftoning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP8295109A 1995-11-15 1996-11-07 透視投影解像度変換回路 Pending JPH09186856A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US558311 1995-11-15
US08/558,311 US5742708A (en) 1995-11-15 1995-11-15 Method and system for performing perspective projection conversion

Publications (1)

Publication Number Publication Date
JPH09186856A true JPH09186856A (ja) 1997-07-15

Family

ID=24229056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8295109A Pending JPH09186856A (ja) 1995-11-15 1996-11-07 透視投影解像度変換回路

Country Status (4)

Country Link
US (1) US5742708A (fr)
EP (1) EP0774855B1 (fr)
JP (1) JPH09186856A (fr)
DE (1) DE69631636T2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448939B1 (ko) * 1997-08-27 2004-11-20 삼성전자주식회사 액정 표시 장치용 해상도 변환 회로
US8203732B2 (en) 2006-04-13 2012-06-19 Canon Kabushiki Kaisha Searching for an image utilized in a print request to detect a device which sent the print request

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6542260B1 (en) * 1997-01-13 2003-04-01 Hewlett-Packard Company Multiple image scanner
US6101293A (en) * 1997-10-20 2000-08-08 Moore U.S.A., Inc. Digital special pantograph
US6683702B1 (en) * 1999-07-07 2004-01-27 Xerox Corporation Compact-dot reproduction of scanned halftone screens
US6771392B1 (en) 1999-09-24 2004-08-03 Xerox Corporation High resolution image mapping for simulating high resolution printing using high addressability without affecting halftone rendering
US6704462B1 (en) * 2000-07-31 2004-03-09 Hewlett-Packard Development Company, L.P. Scaling control for image scanners
US20020163654A1 (en) * 2001-03-23 2002-11-07 Oak Technology, Inc. System and method of simulated increase in image resolution
US7872775B2 (en) 2002-05-24 2011-01-18 Lexmark International, Inc. Apparatus and method for a resolution quality redefinition control system for a multi-function device
US7206154B2 (en) * 2002-09-25 2007-04-17 Hitachi Global Storage Technologies Netherlands, B.V. Method and apparatus for balanced shield shunts, leads and pads for electrical noise reduction in read heads
US7218417B2 (en) 2003-01-30 2007-05-15 Xerox Corporation Resolution conversion using a morphological partial pixel mapping (MPPM) approach
EP1583031A1 (fr) * 2004-03-30 2005-10-05 Dialog Semiconductor GmbH Algorithme de zoom
JP4947351B2 (ja) * 2006-07-28 2012-06-06 富士ゼロックス株式会社 画像処理装置、及び、プログラム
JP4549418B2 (ja) * 2008-03-04 2010-09-22 シャープ株式会社 画像処理装置、画像処理方法、画像形成装置、並びに、プログラム、記録媒体

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029107A (en) * 1989-03-31 1991-07-02 International Business Corporation Apparatus and accompanying method for converting a bit mapped monochromatic image to a grey scale image using table look up operations
US5258854A (en) * 1991-12-06 1993-11-02 Xerox Corporation Converting between write-white, write-black and neutral bitmaps
US5363213A (en) * 1992-06-08 1994-11-08 Xerox Corporation Unquantized resolution conversion of bitmap images using error diffusion
US5455681A (en) * 1992-11-16 1995-10-03 Eastman Kodak Company Low resolution grey level printing method from high resolution binary input file
US5301037A (en) * 1992-11-25 1994-04-05 Xerox Corporation Resolution conversion with simulated multi-bit gray
CA2132248C (fr) * 1993-11-01 1999-09-21 Ying-Wei Lin Appareil et methode de conversion de definition
US5387985A (en) * 1993-12-17 1995-02-07 Xerox Corporation Non-integer image resolution conversion using statistically generated look-up tables
US5608821A (en) * 1994-08-03 1997-03-04 Xerox Corporation Method of high addressability error diffusion
US5604608A (en) * 1995-09-28 1997-02-18 Xerox Corporation Device and method for controlling the scan speed of an image input terminal to match the throughput constraints of an image processing module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448939B1 (ko) * 1997-08-27 2004-11-20 삼성전자주식회사 액정 표시 장치용 해상도 변환 회로
US8203732B2 (en) 2006-04-13 2012-06-19 Canon Kabushiki Kaisha Searching for an image utilized in a print request to detect a device which sent the print request

Also Published As

Publication number Publication date
US5742708A (en) 1998-04-21
EP0774855B1 (fr) 2004-02-25
DE69631636D1 (de) 2004-04-01
DE69631636T2 (de) 2004-08-05
EP0774855A2 (fr) 1997-05-21
EP0774855A3 (fr) 1998-07-29

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